Download BE7100 Operating Instructions BRINKMANN

11 Repair
Brinkmann miniature centrifugal pumps
series KC21...KC60
11.1 Exchange the rotary shaft seal:
1) Disconnect the pump from the power supply.
Check up the marks on the pump unit.
2) Loosen hexagon head cap screws (16).
3) Loosen and remove intake cover (5) from canal
cover (4). Remove the gasket (28) at KC21 and
KC31, or the O-ring at KC35 to KC60.
15)Reconnect pump to the electrical supply. Fill up
the pump!
Check direction of rotation!
4) Push impeller (6) with help of two screwdrives
from the shaft (9). Set the screwdrivers between
the impeller (6) and the canal cover (4).
5) Remove woodruff key (19) from the shaft (9)
and remove the canal cover (4). Remove the
gasket (27).
6) Remove fan cover (11), retaining ring (29) KC60
and fan (10) from shaft (9). Remove parallel pin
(21) KC60.
7) Loosen stud bolts (13) and remove stator (1)
with end shield (7).
8) Push shaft (9) with ball bearing (20) out of end
shield (2).
9) Take locking ring (22) and the supporting ring
(24) out of thing annexed (3).
10)Remove rotary shaft seal (23).
Clean pump components before re-assembling.
Position of the rotary shaft seal (23) may be exchanged with the supporting ring (24), if necessary, to ensure contact of the new sealing lip
with unused surface.
11)Fill the rotary shaft seal (23) with grease (1/3 of
the volume) and press it, with a drift, flat into the
thing annexed (3).
12)The remaining assembly occurs in reverse order
of item 3) to 9). If required, exchange the O-ring
(28), gaskets (27,28) and impeller (6).
13)Screw the hexagon head cap screws (16).
Check up the tightening torque!
14)After having completed the assembly, possible
distortions can be eliminated by light tap upon
intake cover (5) with a plastic hammer.
BE7100
Edition 03/2015
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